String filePath="templates/test.xls"
ClassPathResource classPathResource = new ClassPathResource(filePath);
InputStream inputStream = classPathResource.getInputStream();
主要目录存放再这
public void downloadTemplate( HttpServletResponse response) {
String path = "templates/test.xls";
if (path == null) {
throw new UserException("下载模板失败,模板未找到!");
}
String path="templates/线下成绩批量导入模板.xls";
//资源路径
Resource resource = new ClassPathResource(path);
try (InputStream inputStream = resource.getInputStream()) {
long contentLength = resource.contentLength();
response.reset();
response.setCharacterEncoding("UTF-8");
response.addHeader("Content-Disposition", "attachment;filename*=utf-8''" + URLEncoder.encode(name, "UTF-8"));
response.addHeader("Content-Length", "" + contentLength);
response.setContentType("application/octet-stream");
//写入输出流
InputStream fis = new BufferedInputStream(inputStream);
OutputStream outputStream = new BufferedOutputStream(response.getOutputStream());
byte[] buffer = new byte[32 * 1024];
int count = 0;
while ((count = fis.read(buffer)) > 0) {
outputStream.write(buffer, 0, count);
}
fis.close();
outputStream.flush();
} catch (IOException e) {
log.error("下载模板接口异常", e);
throw new UserException("模板下载失败!");
}
}